Checking if EditText is Empty

cbanks · Mar 23, 2012

Right now I have the following code to detect if the EditText is blank. It works if there are no carriage returns. What should the code look like to detect the EditText is blank if there is nothing in the box other than carriage returns? Thanks.

If EditTextNotes.Text = "" Then

NJDude · Mar 23, 2012

Something like this:

B4X:

Content = EditTextNotes.Text
If Content.Lenght = 0 Then

timwil · Mar 23, 2012

I usually use VariableName.Text.Length to see how long a string is

If it is longer than zero then you can read it and check for chr(10)

kickaha · Mar 23, 2012

timwil said:
I usually use VariableName.Text.Length to see how long a string is

If it is longer than zero then you can read it and check for chr(10)

Or use regex to check for any character other than chr(10), the "." does this.

nfordbscndrd · Mar 23, 2012

If Replace(EditTextNotes.Text, CRLF, "") <> "" Then [it has some text]

I haven't tested this, but I think that's how Replace works. (I'm sure someone will correct me if I'm wrong.)

Erel · Mar 24, 2012

You can check:

B4X:

If EditText1.Text.Trim.Length = 0 Then ...

nfordbscndrd · Mar 24, 2012

Erel said:
You can check:

B4X:

If EditText1.Text.Trim.Length = 0 Then ...

If the text is " " & CRLF & " ", will Trim get rid of the CRLF as well as the spaces? If so, I don't think this is mentioned in the docs.

specci48 · Mar 24, 2012

nfordbscndrd said:
If the text is " " & CRLF & " ", will Trim get rid of the CRLF as well as the spaces?

Yes.

specci48

Checking if EditText is Empty

cbanks

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NJDude

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timwil

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kickaha

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nfordbscndrd

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Erel

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nfordbscndrd

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specci48

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